08cff0157d
Comments addressed, Make emptyMetadataProducer a func to avoid casting, FakeSvcLister: remove error return for len(svc)=0. New test for predicatePrecomp to make method semantics explictly enforced when meta is missing. Precompute wrapper.
60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package predicates
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import (
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"github.com/golang/glog"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/plugin/pkg/scheduler/algorithm"
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"k8s.io/kubernetes/plugin/pkg/scheduler/schedulercache"
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)
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type PredicateMetadataFactory struct {
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podLister algorithm.PodLister
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}
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func NewPredicateMetadataFactory(podLister algorithm.PodLister) algorithm.MetadataProducer {
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factory := &PredicateMetadataFactory{
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podLister,
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}
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return factory.GetMetadata
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}
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// GetMetadata returns the predicateMetadata used which will be used by various predicates.
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func (pfactory *PredicateMetadataFactory) GetMetadata(pod *api.Pod, nodeNameToInfoMap map[string]*schedulercache.NodeInfo) interface{} {
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// If we cannot compute metadata, just return nil
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if pod == nil {
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return nil
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}
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matchingTerms, err := getMatchingAntiAffinityTerms(pod, nodeNameToInfoMap)
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if err != nil {
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return nil
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}
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predicateMetadata := &predicateMetadata{
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pod: pod,
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podBestEffort: isPodBestEffort(pod),
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podRequest: GetResourceRequest(pod),
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podPorts: GetUsedPorts(pod),
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matchingAntiAffinityTerms: matchingTerms,
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}
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for predicateName, precomputeFunc := range predicatePrecomputations {
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glog.V(4).Info("Precompute: %v", predicateName)
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precomputeFunc(predicateMetadata)
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}
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return predicateMetadata
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}
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